1 /* { dg-do compile } */
2 /* { dg-options "-O1 -fstrict-overflow -fdump-tree-optimized" } */
9 /* { dg-final { scan-tree-dump-times "a / 10" 0 "optimized"} } */
10 /* { dg-final { scan-tree-dump-times "a / -10" 1 "optimized"} } */
12 /* { dg-final { cleanup-tree-dump "optimized" } } */